Round HSS

HSS 406x6.4

Standard: CSA G40.20/G40.21Source: Calculated (exact engine)
Calculated: design thickness = nominal thickness (CSA G40.20, Class C), outside radius 2t. Range derived from ASTM A500 sizes — cross-check with the CISC tables.
xyD = 406.4t = 6.35t = 6.35
Cross-section, to scaledimensions in mm

Dimensions

Outside diameterD
406.4mm
Thicknesst
6.35mm

Mass and area

Mass per lengthm
62.65kg/m
Cross-sectional areaA
7,981mm²
Outside perimeterP
1,277mm

Strong axis x–x

Moment of inertiaIx
159.710⁶ mm⁴
Elastic section modulusSx
785.910³ mm³
Plastic section modulusZx
1,01610³ mm³
Radius of gyrationrx
141.5mm

Weak axis y–y

Moment of inertiaIy
159.710⁶ mm⁴
Elastic section modulusSy
785.910³ mm³
Plastic section modulusZy
1,01610³ mm³
Radius of gyrationry
141.5mm

Torsion and stability

Torsional constantJ
319,38610³ mm⁴

Equivalents in other standards